import Vue from 'vue'
import VueRouter from 'vue-router'

// import Login from '../components/Login.vue'
const Login = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Login.vue')

// import Home from '../components/Home.vue'
const Home = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Home.vue')

// import Welcome from '../components/Welcome.vue'
const Welcome = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Welcome.vue')


// import Users from '../components/user/Users.vue'
const Users = () => import(/* webpackChunkName: "users_rights_roles" */ '../components/user/Users.vue')

// import Rights from '../components/power/Rights.vue'
const Rights = () => import(/* webpackChunkName: "users_rights_roles" */ '../components/power/Rights.vue')

// import Roles from '../components/power/Roles.vue'
const Roles = () => import(/* webpackChunkName: "users_rights_roles" */ '../components/power/Roles.vue')


// import Cate from '../components/goods/Cate.vue'
const Cate = () => import(/* webpackChunkName: "cate_params" */ '../components/goods/Cate.vue')

// import Params from '../components/goods/Params.vue'
const Params = () => import(/* webpackChunkName: "cate_params" */ '../components/goods/Params.vue')


// import GoodList from '../components/goods/List.vue'
const GoodList = () => import(/* webpackChunkName: "goodlist_add" */ '../components/goods/List.vue')

// import Add from '../components/goods/Add.vue'
const Add = () => import(/* webpackChunkName: "goodlist_add" */ '../components/goods/Add.vue')


// import Order from '../components//order/Order.vue'
const Order = () => import(/* webpackChunkName: "order_report" */ '../components//order/Order.vue')

// import Report from '../components/report/Report.vue'
const Report = () => import(/* webpackChunkName: "order_report" */ '../components/report/Report.vue')


Vue.use(VueRouter)


const router = new VueRouter({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: Params },
        { path: '/goods', component: GoodList },
        { path: '/goods/add', component: Add },
        { path: '/orders', component: Order },
        { path: '/reports', component: Report }
      ]
    }
  ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 从哪个路径跳转而来
  // next 是一个 函数，表述放行
  //  next()放行  next('/login) 强制跳转

  if (to.path === '/login') return next();
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token');
  if (!tokenStr) return next('/login');
  next();
})

export default router
